CIRRUS AIRPLANE MAINTENANCE MANUAL MODELS SR22 AND SR22T
TIME LIMITS AND MAINTENANCE CHECKS
1. GENERAL
This chapter provides the recommended intervals for the overhaul and replacement of components, and
the scheduled and unscheduled maintenance for the airplane. The recommended time limits and mainte-
nance checks given in this chapter were created to meet the requirements of the Federal Aviation Regula-
tions. Other Regulatory Authorities can have different requirements. Follow the requirements of the
Regulatory Authority of the country where the airplane is registered.
CAUTION: Recommended overhaul and replacement times are listed in Section 5-10, Time Limits.
These maintenance items must be incorporated into the 100 Hour, Annual, or Progressive
inspections as applicable.
A. Scheduled Maintenance Programs and Requirements
Note: It is important to note that Owners and Operators of non-commercially operated aircraft,
for example private owners, require only an Annual inspection.
Because the 100 Hour Inspection items are identical to the Annual Inspection items they
are listed under the same column in Section 5-20, Scheduled Maintenance Report.
However, 100 Hour Inspections are not required for non-commercially operated aircraft.
It is the operator's responsibility to follow the requirements of the airworthiness authority
of the country where the airplane is registered.
All civil airplanes of U.S. registry must undergo a complete inspection each 12 calendar months as
required by 14 CFR § 91.409. Compliance with the regulations is accomplished using one of three
methods; Traditional Annual Inspection, Traditional 100 Hour Inspection, or Progressive Inspection.
(1) Traditional Annual Inspection Program
The Traditional Annual Inspection Program utilizes 14 CFR § 43, Appendix D to inspect the air-
plane. Annual Inspection inspection items are listed under the Traditional Program column on
the Scheduled Maintenance Report in Section 5-20. (Refer to 05-20)
(2) Traditional 100 Hour Inspection Program
The Traditional 100 Hour Inspection Program is required, in addition to a complete Annual
Inspection, for civil airplanes of U.S. registry which are operated commercially (for hire). The 100
Hour inspection items are identical to the Annual Inspection items and are listed under the Tradi-
tional Program column on the Scheduled Maintenance Report in Section 5-20. (Refer to 05-20)
(3) Progressive Inspection Program
The Progressive Inspection Program allows the work load to be divided into smaller operations
over a time period of 400 or 800 hours. At the completion of a Progressive Inspection Program
the aircraft will have undergone a full Annual Inspection. The programs were developed to max-
imize inspection efficiency for aircraft with annual expected usage rates in excess of 400 hours.
The Progressive Inspection Programs inspection items are identical to the Annual Inspection
items and are broken into 5-cyclical phases listed under the Progressive Inspection Phase col-
umn on the Scheduled Maintenance Report in Section 5-20. (Refer to 05-20)
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B. Traditional Inspection Program Intervals
(1) Annual Inspection Time Intervals
The inspection interval to the next Annual Inspection may not exceed twelve calendar months.
For Example: If an inspection were signed off on 15 September 2005, the next Annual Inspec-
tion would be due and must be accomplished no later than 30 September 2006. All subsequent
Annual Inspections will be due in September unless the schedule is reset by performing an
Annual Inspection early.
(2) 100 Hour Inspection Time Intervals
The interval between 100 Hour Inspections should never be exceeded by more than 10 hours,
and then only if additional time is required to reach a place where the inspection can be satisfac-
torily accomplished. Additionally, the time the interval was exceeded must be included as flight
hours in the next interval. For example: If a 100 Hour Inspection was due at 650 flight hours and
was actually signed-off at 658 flight hours, the next 100 Hour Inspection is due at 750 flight
hours, not 758 flight hours. Inspection tolerances cannot be accumulated.
C. Progressive Inspection Program Intervals
Progressive Inspection Program intervals should never be exceeded by more than 10 hours, and then
only if additional time is required to reach a place where the inspection can be satisfactorily accom-
plished. At the completion of the 400 or 800 hour progressive inspection, the program will accomplish
a full inspection of the aircraft, constituting an Annual Inspection. If all Phase Inspections are not com-
pleted within 12 calendar months, all remaining Phase Inspections must be completed to maintain air-
worthiness as required by 14 CFR § 91.409.
The Progressive Inspection Program uses Detailed and Routine inspections to accomplish the
required maintenance. Routine Inspections are regular procedures generally consisting of a Visual or
Operational Inspection of the airplane, component, or system. Detailed Inspections are comprehen-
sive examinations or Functional Inspections of the airplane, component, or system. Disassembly is
required as necessary to gain access for the inspection of assemblies and related sub-assemblies.
(1) 400 Hour Progressive Inspection Program (See Figure 05-001)
The 400 Hour Progressive Inspection Program provides for the complete inspection of the air-
plane utilizing a five-phase cyclic inspection program. A total of eight inspections are accom-
plished over the course of 400 flight hours, with an inspection occurring every 50 flight hours.
(a) 400 Hour Progressive Inspection Program Intervals
• Phase I Inspection is accomplished at the 50 hour interval and covers:
• Detailed Inspection of the Wing Group
• Routine Inspection of the Engine Group
• Routine Inspection of the Landing Gear Group
• Phase II Inspection is accomplished at the 100, 200, 300, and 400 hour intervals and
covers:
• Detailed Inspection of the Engine Group
• Detailed Inspection of the Propeller Group
• Routine Inspection of the Landing Gear Group
• Phase III Inspection is accomplished at the 150 hour interval and covers:
• Detailed Inspection of the Landing Gear Group
• Routine Inspection of the Engine Group
• Phase IV Inspection is accomplished at the 250 hour interval and covers:
• Detailed Inspection of the Fuselage and Empennage
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• Routine Inspection of the Engine Group,
• Routine Inspection of the Landing Gear Group,
• Routine Inspection of the Cabin Group.
• Detailed Inspection of the Ice Protection System Group.
• Phase V Inspection is accomplished at the 350 hour interval and covers:
• Detail Inspection of the Cabin Group,
• Detail Inspection of the Radio Group,
• Routine Inspection of the Engine Group,
• Routine Inspection of the Landing Gear Group.
(2) 800 Hour Progressive Inspection Program (See Figure 05-002)
The 800 Hour Progressive Inspection Program uses the same five-phase cyclic inspection pro-
gram as the 400 hour inspection with an alternating 50 hour oil service and general aircraft
inspection.
Additionally, supplemental inspections are currently required for Seats and Restraints, Control
Surface Rigging, Wheel and Brakes, Landing Gear, Water Traps, and Transient Voltage Sup-
pressors. These additional inspections are annotated with a bracketed “800” under the Phase
Inspection columns of the Scheduled Maintenance Report.
Service and reliability data will be collected on these systems with the intent of providing inspec-
tion relief upon future analysis. Operators enrolled in the 800 Hour Program are encouraged to
provide Cirrus Design with maintenance feedback on these additional inspections using the
online Publication Change Request form.
http://servicecenters.cirrusdesign.com/TechPubs/serviceloopform.asp
A total of sixteen inspections are accomplished over the course of 800 flight hours, with an
inspection occurring every 50 flight hours.
(a) 800 Hour Progressive Inspection Program Intervals
• 50 Hour Inspection is accomplished at the 50, 150, 250, 350, 450, 550, 650, and 750
hour intervals and covers all inspection items as specified under the 50 Hour inspec-
tion column of the Traditional Program on the Scheduled Maintenance Report.
• Phase I Inspection is accomplished at the 100 hour interval and covers:
• Detailed Inspection of the Wing Group
• Routine Inspection of the Engine Group
• Routine Inspection of the Landing Gear Group
• Phase II Inspection is accomplished at the 200, 400, 600, and 800 hour intervals and
covers:
• Detailed Inspection of the Engine Group
• Detailed Inspection of the Propeller Group
• Routine Inspection of the Landing Gear Group
• Phase III Inspection is accomplished at the 300 hour interval and covers:
• Detailed Inspection of the Landing Gear Group
• Routine Inspection of the Engine Group
• Supplemental Inspection of Seats and Restraints, Control Surface Rigging,
Wheel and Brakes, Water Traps, and Transient Voltage Suppressors
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• Phase IV Inspection is accomplished at the 500 hour interval and covers:
• Detailed Inspection of the Fuselage and Empennage
• Routine Inspection of the Engine Group
• Routine Inspection of the Landing Gear Group
• Routine Inspection of the Cabin Group
• Detailed Inspection of the Ice Protection System Group
• Phase V Inspection is accomplished at the 700 hour interval and covers:
• Detail Inspection of the Cabin Group
• Detail Inspection of the Radio Group
• Routine Inspection of the Engine Group
• Routine Inspection of the Landing Gear Group
• Supplemental Inspection of Wheel and Brakes and Landing Gear
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Hour Phase I Phase II Phase III Phase IV Phase V Complete
50 X
100 X
150 X
200 X
250 X
300 X
350 X
400 X O
450 X
500 X
550 X
600 X
650 X
700 X
750 X
800 X O
850 X
900 X
950 X
1000 X
1050 X
1100 X
1150 X
1200 X O
1250 X
1300 X
1350 X
1400 X
1450 X
1500 X
1550 X
1600 X O
1650 X
1700 X
1750 X
1800 X
1850 X
1900 X
1950 X
2000 X O
Figure 05-001
400 Hour Progressive Inspection Program Phase Intervals
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Hour 50 Hr Phase I Phase II Phase III Phase IV Phase V Complete
50 X
100 X
150 X
200 X
250 X
300 X*
350 X
400 X
450 X
500 X
550 X
600 X
650 X
700 X*
750 X
800 X O
850 X
900 X
950 X
1000 X
1050 X
1100 X*
1150 X
1200 X
1250 X
1300 X
1350 X
1400 X
1450 X
1500 X*
1550 X
1600 X O
* Supplemental inspections are currently required for Seats, Control Surface Rigging, Wheel and Brakes,
Landing Gear, Water Traps, and Transient Voltage Suppressors. These additional inspections are annotated
with a bracketed “800” under the Phase Inspection columns of the Scheduled Maintenance Report.
Figure 05-002
800 Hour Progressive Inspection Program Phase Intervals
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(3) Progressive Inspection Program Eligibility
Cirrus Design SR22 airplanes with serial numbers 0002 and subsequent, and SR22T airplanes
with serial numbers 0001 and subsequent are eligible for the Progressive Inspection Program.
Eligible airplanes must meet one of the following conditions:
(a) The airplane must have less than 50 hours total time in service, calendar time remaining
within the Annual Inspection period, and comply with all applicable Airworthiness Direc-
tives, Special Inspection Requirements, and Mandatory Service Bulletins before initiating
the Progressive Inspection Program.
(b) Airplanes with more than 50 hours time in service must complete an Annual Inspection
and comply with all applicable Airworthiness Directives, Special Inspection Requirements,
and Mandatory Service Bulletins before initiating the Progressive Inspection Program.
(4) Initiating the Progressive Inspection Program
To initiate the Progressive Inspection Program, the owner or operator must:
(a) United States: Submit a letter of request and a copy of the Progressive Inspection Pro-
gram for approval to the Flight Standards District Office having jurisdiction over the area in
which the applicant is located. (See Figure 05-003)
A certified mechanic holding an Inspection Authorization or an appropriately certified
Repair Station will be required to supervise or conduct the Progressive Inspection.
Approval must be obtained before initiating this program.
(b) International: Submit the appropriate applications and a copy of the Progressive Inspec-
tion Program for approval to the government agency having jurisdiction over the area in
which the applicant is located.
(c) Make an entry in the airplane maintenance records stating that airplane has been placed
on the Progressive Inspection Program in accordance with 14 CFR § 91.409 (d), noting
the airplane total time in service and date.
(5) Conducting the Progressive Inspection Program
(a) Pre-Inspection:
1 Review airplane inspection records and maintenance history.
2 Determine which Phase Inspection is due.
3 Note any discrepancies indicated by owner or operator.
4 Determine and comply with any FAA Airworthiness Directives. Ensure required
compliance will not become due prior to the next scheduled inspection and contrary
to the instructions contained within the directive.
5 Inspect airplane records to determine hourly and calendar replacement times for
components and expendable filters.
(b) Complete the applicable Phase Inspection:
Note: Inspection must be completed by a certified mechanic holding an Inspector
Authorized (IA) or a Certified Repair Station.
The Progressive Inspection Program provides a checklist for each Phase Inspection and
is used in conjunction with the Cirrus Design Airplane Maintenance Manual, Illustrated
Parts Catalog, and all other applicable manufacturer and vendor maintenance, service
manuals, and bulletins. Each Phase Inspection outlines Routine and Detailed mainte-
nance/inspection tasks. These tasks are numbered in sequence and must be performed in
sequence. Each Phase Inspection form must be completed in full.
1 Each Phase Inspection begins with the Airplane Operational and Functional Check
(Refer to 05-30). This check allows for the operational check of essential airplane
systems. Any defects found during the operational check should be noted and
addressed before returning the airplane to service.
2 Perform the specified Inspections. Check or initial each inspection item.
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3 Each Phase Inspection ends with a Airplane Operational and Functional Check and
a Post Run-Up Inspection. These inspections allow for the operational check of
essential airplane systems, leak checks, and status verification of Airworthiness
Directives, Service Bulletins, and airplane documents.
4 In the airplane maintenance records:
• Enter date of inspection and airplane total time.
• Enter type of inspection accomplished.
• Enter the signature, certificate number, and kind of certificate held by the main-
tenance Facility/Inspector.
• Enter the following or similarly worded statement:
“I certify that in accordance with a Progressive Inspection Program a Routine
Inspection of (identify whether airplane or components) and a Detailed Inspec-
tion of (identify components) were performed and the (airplane or components)
are (approved/disapproved) for return to service”.
If disapproved, the entry will further state “a list of discrepancies and un-airwor-
thy items dated (date) has been provided to the owner/operator”.
• Enter the hours when next inspection will be due.
Example: “Next Phase Inspection due at 526.25 time in service”.
5 At the conclusion of the Phase-II 400 Hour or 800 Hour Inspection repeat the pro-
gram.
(c) Airplanes Away From Normal Base Of Operation
If airplane is away from base of operation where inspections are normally conducted, a
certified technician holding an Inspection Authorization or appropriately certified Repair
Station may perform inspection.
The inspection will be completed in appropriate sequence and in accordance with proce-
dures and forms of technician who would normally perform the inspection. Electronic
transmittal is acceptable means of communicating procedures and forms from normal
base of operation to technician performing inspection.
(6) Canceling the Progressive Inspection Program
The owner or operator must notify the local Flight Standards District Office in writing before dis-
continuing the Progressive Inspection Program.
After discontinuance, if enrolling in Annual Inspection the first Annual will be due within 12 calen-
dar months after completion of the Phase-II 400 or 800 Hour Inspection. If enrolling in the 100
Hour inspection, the first 100 hour inspection will be due within 100 hours of the Phase-II 400 or
800 Hour Inspection.
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Cirrus Design Progressive Inspection Program
Letter of Request
Submitted To: Federal Aviation Administration
Flight Standards District Office Date: _________________________
City, State, Zip: _________________________________________________________________________
Contact Name: _______________________ Phone:__________________ Fax: __________________
______________________________________________________________________________________
In accordance with FAR 91.409 (d), the undersigned desire to use and request acceptance of the Cirrus
Design Progressive Inspection Program for use as an Approved Aircraft Inspection Program. The subject
facility has appropriate housing, equipment, and technical information for the necessary disassembly and
proper inspection of the aircraft.
______________________________________________________________________________________
Certificated Mechanic with Inspection Authorization:
Name: ___________________________________________ Certificate No.: ________________________
Certificated Airframe Repair Station:
Name: ___________________________________________ Certificate No.: ________________________
______________________________________________________________________________________
The aircraft qualifies to begin the Progressive Inspection Program because:
___ it is a new aircraft with less than 50 hours time in service.
Date of Original Airworthiness Certificate ______________________________________________
Total Time in Service to Date ______________________________________________
___ an Annual Inspection was completed less than 50 hours ago.
Date of Annual ______________________________________________
Total Time in Service at Annual ______________________________________________
Total Time in Service to Date ______________________________________________
______________________________________________________________________________________
Aircraft Registration Number: _________________________ Aircraft Model: _____________________
Aircraft Serial Number: ______________________________ Engine Model: _____________________
Engine Serial Number: ______________________________ Propeller Model: ____________________
Propeller Serial Number: ____________________________
______________________________________________________________________________________
Registered Owners Name: ________________________________________________________________
City, State, Zip: _________________________________________________________________________
Contact Name: _______________________ Phone: ________________ Fax: ________________
______________________________________________________________________________________
Operator Name: ________________________________________________________________________
City, State, Zip: _________________________________________________________________________
Contact Name: _______________________ Phone: ________________ Fax: ________________
______________________________________________________________________________________
Service Facility Name: ___________________________________________________________________
City, State, Zip: _________________________________________________________________________
Contact Name: _______________________ Phone: ________________ Fax: ________________
______________________________________________________________________________________
Signatures:
___________________________ __________________________ __________________________
Registered Owner Operator Service Facility
Figure 05-003
Sample Letter of Request
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D. Airplane Operational and Functional Checks
Operational and Functional Checks must be performed before and after Scheduled Maintenance
Inspections to detect any airplane abnormalities or malfunctions. These inspections are listed in Sec-
tion 5-30, Airplane Operational and Functional Checks. (Refer to 05-30)
E. Unscheduled Maintenance Checks
Abnormal airplane operations require special maintenance checks. Definitions and inspection proce-
dures for hard/overweight landings, overspeed, severe air turbulence, lightning strike, high drag/side
loads due to ground handling, and ground gusts are listed in Section 5-50, Unscheduled Maintenance
Checks.
CAUTION: Airplanes operated for Air Taxi operation or other than normal operation and airplanes
operated in humid tropics or cold and damp climates, etc., may need more frequent
inspections for wear, corrosion, delamination, and/or lack of lubrication. For these condi-
tions, periodic inspections should be performed until the operator can set his own
inspection periods based on experience. For maintenance practices pertinent to opera-
tion in harsh environmental conditions, see Section 5-50, Unscheduled Maintenance
Checks. (Refer to 05-50)
For airplanes enrolled in the Progressive Inspection Program, owner/operators cannot
exceed the 50 hour phase intervals (±10 hours) but may perform inspections more fre-
quently.
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